Interrelated power delivery controls – including engine control – Transmission control – Engine controlled by transmission
Patent
1994-11-10
1996-03-12
Marmor, Charles A.
Interrelated power delivery controls, including engine control
Transmission control
Engine controlled by transmission
477 79, 477124, 3644241, B60K 4104
Patent
active
054981956
ABSTRACT:
An electronic engine control monitors engine speed, vehicle speed and determines various engine RPM values and RPM ranges used in fueling a motor vehicle engine to achieve desired engine speeds prior to and during an automatic gear shift sequence. The engine is coupled to a manual/automatic transmission that includes manually selectable gear ratio operation modes and automatically selectable gear ratio operation modes. In order to verify engagement of the automatically selectable gear ratio operation modes, a predetermined reverse torque is introduced into the drivetrain by fueling the engine to certain predetermined levels after an automatic gear shift sequence begins and monitoring engine speed to test whether engine speed is within calculated synchronous engine speed ranges corresponding to the gear ratio of the desired automatically selectable gear ratio operation mode.
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Anderson Dean S.
Gatewood Bryan S.
Griffen Peter J.
Steeby Jon A.
Webber Larry R.
Cummins Electronics Company, Inc.
Kwon Peter
Marmor Charles A.
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